Hand oiler



Patented Sept. 22, 1936 UNITED STATES PATENT OFFICE HAND OILER Samuel 0. Paull, Wellsburg, W. Va., assignor to Eagle Manufacturing Company, Wellsburg, W. Va., a corporation of West Virginia Application November 19, 1935, Serial N0. 50,572 Claims. (Cl. 221-51) This invention is directed to an improvement the cap, with the result to avoid the objectionable in hand oilers of, the type including a container, dripping and contamination of oil over other sura delivery spout and a manually operable pumpfaces when the capwith any attached parts is ing mechanism to force the material from the removed, as in previous conventional structures 5 container through the spout. Of this yp In hand oilers of this type, which are particu- HeTetofore in oilers of this type, the operating larly designed to be held in one hand and operparts are connected together and independently ated by the fingers of that hand, it has been found connected tothe different parts of the container. that the container proper is frequently distorted For example, part of the pumping device will be 1 and rendered ineffective, or at least objectionable, Connected to the container and the operating by reason of such distortion. Ordinarily, the conm b therefor Will he Carried y the p tainer is constructed of relatively thin metal of riorly secured or mounted on the container. smooth exterior and yields more or less readily T or w n pai s n sa y, there s even under the continued pressure of the hand Siderable difficulty in r m all Parts Of the in continued reuse of the oiler. The main source mechanism for replacement of parts or other cor- 15 of distortion, however, is the rough usage 'to which e io oilers of this type are ordinarily subjected, being Another j c of the nv therefore, is frequently dropped onto concrete flooring and not to provide a l pu p elements and delivery infrequently laid down on the floor after use and parts Within h Container as a u t a d fi such then ste ed on accidentally, with the result that parts in p p r relation in the container u h 20 the oiler is either rendered incapable of proper the medium of a sin on Wit th eX- use thereafter or is so distorted as to be difiiter or pa s, su as the spout and mechanical cult to hold and operate. Furthermore, where the pump operator, arranged for thr a d nn t n exterior surface of the container is smooth, it is W e interior Darts through the Wall Of the '25 sometimes difficult to retain the grip on this surcontainers, o the m v of the exterior as face and maintain the direction of the spout for p s and f the single interior n n, th the delivery of the oil in the desired direction, entire structure may be ily removed as a unit particularly when the part being oiled is som for such repair or replacement operation as may what difficult to reach. be found necessary. '30 Therefore, one of the princi al objects of th The invention is illustrated in the accompanypresent invention is to provide the wall of the n drawing, in Which! container of corrugated form, both with a view re 1 s a w in elevation of the prov d of providing for a better grip during the use of a d oilerthe oiler and with a view to increasing the Fi u e 2 s a longitudinal section f h s m strength of such wall against. that character of W the P p g parts in elevation. :13 distortion to which a smooth wall would readily Figure 3 is an enlarged vertical sectional view, yield. p partly in elevation, of the pumping unit.

Again, in oilers of this type, at least generally The improved hand oiler includes a container speaking, some part .ofthe mechanism, either the I having diameter to be Conveniently p d in 10 spout or a part of the pumping apparatus, is the hand and a length appropriate to the length n 145 of t mechanism hi is r d by r secured cient curvature to more or less accommodate the 0 the cap is removed for a refilling of the container. oil is made up as a unit including a fluid delivery ried by and secured to the closing cap of the conof hand oilers of this typ The Weli 0f the c ntainer, so that when this cap is removed to retamer has Smooth upper and lower a g ns 2 and fill the container, as is of course frequently neces- 3 intermediate which the full length o th Wa l sary in relatively small oilers of this type, the part is corrugated at 4 With the c u a o s o s to the cap is necessarily removed with the cap fi g rs 0 e 11 The Container is P m y and as such part or parts are usually covered with closed at the bottom, as at 5, with the upper oil or contain oil within them, there is a constant m r in 2 ext ri riy threaded to r v n 'drip of such contained oil from these parts when T e p p and delivery. apparatus for the A further object of the invention, therefore, is channel 'i and an underlying vertically aligned the provision of means by which the pumping appump cylinder 8. These elements are connected paratus to be manually operated and the connecin vertical alignment and in axially parallel relation leading to the spout are secured to the contion by a web 9 which at one end, termed the tainer and are wholly free of any connectionwith inner end, integrally supports a tube It whlchki i extends at right angles to the channel 1 and cylinder 8 and is in open communication with each.

The tube It) extends slightly above the fluid delivery channel at l l and below the pump cylinder 8 at l2, and immediately above the communication between the tube Eli and. the pump cylinder 8, the interior of the tube is formed with a valve seat l3. In the tube Ill below the pump cylinder, there is formed an interior rib M to slightly reduce the diameter of the tube to provide a limit abutment for a spring to be later described.

Threaded into the lower end of the tube i9 is a pipe section I 5, the extreme upper end of which is formed as a valve seat It and which pipe section, somewhat below the tube I0, is deflected laterally, with its open inlet end I! arranged adjacent the wall of the container and sufficiently close to the bottom to withdraw practically all of the fluid from the container in the pumping operation.

The length of the fluid delivery channel and pump cylinder, with the added diameter of the tube It), is slightly less than the diameter of the container, and the entire unit so described is held in position and supported from an angle bracket I8 secured to the inner wall of the container adjacent the upper end, with the horizontal leg perforated to receive a set-screw 59 which threads into the upper extension II of the'tube I0.

This screw is forms the sole supporting element of the pumping unit within the container, and when so connected, the tube l 0 extends vertically of the container adjacent one side wall while the fluid channel 7 and pump cylinder 8 extend transversely of the container with their open ends remote from the tube Hi immediately adjacent and substantially in contact with the container wall.

The valves employed include a ball valve 28 which rests upon the valve seat is and opens under upward pressure in the tube ii) to establish communication between the tube or pump cylinder and the fluid channel I. This ball valve is held normally closed by a light spring 2! which bears upon the valve and is held under appropriate tension by the free end of the set-screw [9. A second ball valve 22 is arranged to cooperate with the seat 26 at the upper end of the pipe section Hi, this valve also opening upwardly and being held in normally closed position by a light spring 23 which bears between the valve 22 and the rib l4.

A hollow plunger 24 having a machine fit within the pump cylinder 8 is arranged in that cylinder, with the closed end of the plunger extending toward the open end of the cylinder, a spring 25 seated in the hollow plunger and bearing against the opposite wall of the tube NJ serving to maintain the plunger at its extreme outward limit of movement with respect to the cylinder 8.

A delivery spout 25 has a threaded terminal 21 designed to be passed through an opening 28 in the wall of the container in line with the open end of the delivery channel I, with such threaded terminal engaging the interiorly threaded section of the channel at such open end. Adjacent the threaded end, the spout may be enlarged and formed to provide a section 29 for wrench application and removal of the spout. The free. end of the spout, which of course may be of any length and preferably though not necessarily rigid, has a terminal nozzle 33 which may be formed for the delivery of the desired character of fluid.

The means for mechanically operating the pump plunger 24 is also mounted exteriorly of the container. This includes a rod 31 having a disk head 32 of a size. to fit within the pump cylinder 8 and engage and operate the hollow plunger 24 against the influence of the spring 25. This rod is passed through an opening 33 in the wall of the container, and a threaded nipple 34 freely slidable on the rod has a threaded terminal 35 which passes through the opening 33 and is threaded into the end of the pump cylinder 8. The opposite end of the nipple is threaded to receive a gland 36 to provide a non-leaking connection between the rod and nipple. The free or outer end of the rod 32 is provided with an enlarged head 31 serving as a finger-piece for operating the rod.

It is to be particularly noted that all parts of the pumping apparatus are carried by the container and that not a single part of the operating mechanism is connected to or carried by the cap.

Therefore, when it is necessary to refill the container, the removal of the cap does not necessitate corresponding removal of any of the interior parts which would necessarily be objectionable as they are covered with oil and would mar or drip on any surface on which the cap was laid during the refilling operation.

Of course, it is apparent that on inward movement of the plunger 2:1 through corresponding movement of the rod 36, air contained in the pump cylinder is forced past the valve 20 and out through the spout and that on release of the pressure on the rod 3!, the return of the plunger 24 under the influence of the spring 25 will draw up into the tube Iii the fluid from the container. of course, the valve 22 opens during this flow of the container incident to the atmospheric pressure on the surface of the fluid beyond the pumping apparatus and at the same time the valve 29 is closed. After several movements, of the plunger to prime the pump, that is fill the conduits, all succeeding movements of the plunger, as long as fluid is within the container, draws such fluid into the pump cylinder on the outward movement of the plunger 24. under the influence of the spring 25 and forces such contained fluid past the valve 20 and out through the 'fluid delivery channel 1 and the spout.

The corrugated wall of the container is particularly important in hand oilers of this type. It permits the container to be made up of appropriate material of usual gauge while at the same time providing an unusual strength to the otherwise unprotected wall of the container to avoid distortion of that wall under unusual pressure of the hand in the use of the oiler or any casual fall or contact of such container which would otherwise have the effect to mar and possibly seriously indent such container wall with corresponding objectionable appearance or, in exaggerated cases; complete disruption of the oiler.

Another important feature is the mounting of the pumping apparatus by a single screw on the interior of the container and from the container wall, with all connected parts wholly free of any connection with the cap. Thus, when the spout may be readily and conveniently carried out from the exterior of the container, the removal of a single screw (l9) and the slight turning of the pumping apparatus from beneath the bracket permits such apparatus to be removed as a whole from the interior of the container.

The pump cylinder 8 has a vent opening 3! serving not only as a vent but acting also as an in'takefor the oil from the body of the cylinder in the initial stroke of the pump plunger to admit and plunger operating rod are removed, which sufficient oil to serve as an oil seal for the plunger. Furthermore, when the parts are inactive, the head 32 of the plunger rod 3| rests against the end of the threaded nipple 34 to seal this connection against leakage.

It is to be particularly noted that because the spout is directed from the side of the container body and the plunger operative by one finger of the hand grasping the container body, pump operation is permitted without tendency to divert the direction of the flow from the spout. In containers of this type as previously constructed, where the pump-operating element is connected to and arranged above the top of the container, the action on the lever for operating this element serves to divert the spout from the direct line intended and thus fail to deliver the oil at the exact spot desired with consequent wastage. The present construction entirely obviates this as the action of the plunger is in direct line with the grip and has no tendency to twist or turn the container under the pump action. Thus, the spout may be directed to the exact point desired to be lubricated and held at that point without variation during the pumping operation.

What is claimed to be new is:

1. A hand oiler including a container, a cap closing one end thereof, a pumping mechanism arranged in the container, said pumping mechanism including a fluid delivery channel, a pump cylinder, and an intercommunicating tube formed as a unit, a bracket secured to the interior of the container, and a set-screw leading through the bracket and removably connected to the tube for supporting the unit within the container.

2. A hand oiler including a container, a cap closing one end of the container, a pumping mechanism within the container and, said pumping mechanism comprising a unitary structure including a tube arranged longitudinally of the container, a pump cylinder extending laterally of and in communication with the tube, and a fluid delivery conduit extending laterally of and in communication with the tube, and a single element engaging the cylinder and engaging and closing the end of the tube above the delivery conduit.

3. A construction as defined in claim 2, wherein the container is formed with openings to register with the free end of the delivery conduit and with the free end of the pump cylinder, a de livery spout projecting outwardly of the wall of the container and extending through the opening in line with the delivery conduit for connection with said conduit, and pump operating means extending through the opening in the wall of the container in line with the pump cylinder.

4. A hand oiler including a container of substantially uniform diameterthroughout having a corrugated wall and an upper open end substantially of the full diameter of the container, a removable cap closing said end, a pumping unit including a tube arranged longitudinally of the container, a fluid delivery conduit, and a pump cylinder extending laterally from and in communication with the tube, means extending through the wall of the container and removably connected to the fluid delivery conduit for fluid delivery purposes, means extending through the wall of the container and adapted for removable connection with the end of the pump cylinder for pumping purposes, and an element fixedly and removably connecting the tube and container immediately below the cap.-

5. A construction as defined in claim 4, wherein the element includes a set-screw cooperating with a fixed projection of the container and threaded into the tube above the fluid delivery conduit.

SAMUEL O. PAULL. 

